Blender add-on “NodeTree Source” v. 1.2.5.
Blender add-on “NodeTree Source” updated to v. 1.2.5.
- Fixed issue with the text.from_string() block in Blender 3.2 and higher
3.3
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Appending objects into the scene by name from an external blend file
In order to append the necessary meshes into the scene by name from an external blend file, we can use the wm.append operator or use the BlendDataLibraries mechanism.
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Transferring the local coordinate system from one object to another
We can quickly transfer the local coordinate system from one object to another by joining and next separating them, or by performing the “Align to Transform Orientation” operation with the “Affect only Origins” option turned on.
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Selecting objects in a collection
To select all objects in a collection with the Blender Python API, we need to walk through the list of these objects and call the “select_set” method for each of them, specifying the “True” value in the parameter.
Tracking when the user switching between object and edit mode
It is impossible to track the switching between object and edit mode by the user with common handlers in Blender, there are no handlers for such event type in the bpy.app.handlers. However, this can be tracked through the Message Bus.
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Proper use of foreach_set
foreach_set is a convenient wrapper in the Blender Python API for quickly setting the desired value for each element of the bpy_prop_collection type. However, when using this function, script developers sometimes run into an error.
Making spring by Blender Geometry Nodes
To make a spring with Geometry Nodes in Blender, all we need to do is use some vector math. Taking a straight line as a basis, we can move its points in accordance with the circle equation so that in the end they form a spring.
Creating Custom UI Panels in Blender
When writing add-ons for Blender, it is important to place UI elements – buttons, fields, switches, etc., so that the user can easily find them and have convenient access to them. Blender provides to add-on developers the following areas to place their custom UI:
Distributing objects on a plane without intersections with Blender Geometry Nodes
To distribute objects with Blender Geometry Nodes, the “Distribute Points on Faces” node is usually used. It produces a set of points randomly scattered over the surface of the mesh polygons. Next, the necessary objects are located at these points. In common case, these points are located randomly, and the objects located on them can intersect with each other if the points are close. However, we can configure the nodes so that the meshes located on the points will not intersect.
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